My workplace is unionized and even if you don't join the union a portion of your pay is still deducted to pay for the union's role in negotiating your contract.
The union recently has been getting involved in a number of political activities far beyond the situation of our particular workplace (relating to foreign policy, not domestic issues e.g. supporting pro-union candidates which you might expect from a union). This is making a fair number of people upset, because our dues are being spent on political activities we disagree with.
Most workers are not really paying attention to these issues and the union leadership is pretty undemocratic - e.g. when a position opened up on the sub-committee dealing with these issues and someone who opposed these activities asked to join the sub-committee, they turned around and said that for logistical reasons they had to get rid of the opening.
I don't want to be represented by a union that isn't focused directly on the issues that we have the union for - negotiating a better contract and better work conditions.
What are some effective strategies for making this happen outside of trying to "take over" the union through a political campaign in the next election cycle?
As I said there is a group of us who are fighting the union to stop its activities. Is it possible to threaten the union's ability to represent the workers, e.g. by a mass exodus of 10-20% of the workers? Or threaten to establishment of a second "competing" union, if enough of the current members express their intention to leave the union? Since unions are created through a process of worker consent (i.e. if enough workers in a workplace state the intention that they want to create a union, a union must be created) I imagine that it must be possible to revoke that consent.